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US 5,446,262 AGranted
Soldering iron and soldering iron tip with spaced heatable shell member
AssigneeWahl Clipper Corporation
InventorJames E. McCambridge
Life of this patent
Estimating the term…
Abstract
A soldering iron includes a handle, a power source such as a rechargeable battery in the handle, and two electrical terminals connected to the battery through a switch; a soldering iron tip is secured to the terminals and includes a pair of electrical leads, and a wire heating element connected to the leads and encapsulated in a ceramic filled shell, wherein the tip has relatively low mass and a relatively high resistance heating element, and in battery operated irons can produce about 520 solder joints per battery charge.
Claims7
An electrically and thermally highly efficient soldering iron, comprising:
- a housing having a forward end;
- a heatable shell member adapted to be supported in spaced relation with the forward end of said housing, said shell member having a weight of about 0.75 grams or less;
- a heating element of resistance wire within said shell member in effective heating relation therewith and electrically insulated therefrom, said element having resistance at room temperature of about 0.19 ohms, and a resistance of about 0.52 ohms when the outside of said shell is heated to about 500.degree. F.;
- means for providing electrical power to said heating element;
- and
- a pair of electrical conductors of deformable solid wire connected between said heating element and said power means for energizing said element and for solely supporting said element and said shell member in spaced relation to the forward end of said housing.
3 more elements
Dependencies are inferred from the claim text.